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-rw-r--r--arch/arm/mach-ixp4xx/common.c16
-rw-r--r--arch/arm/mach-ixp4xx/coyote-setup.c10
-rw-r--r--arch/arm/mach-ixp4xx/gtwx5715-setup.c15
-rw-r--r--arch/arm/mach-ixp4xx/ixdp425-setup.c13
-rw-r--r--arch/arm/mach-ixp4xx/nas100d-setup.c6
-rw-r--r--include/asm-arm/arch-ixp4xx/coyote.h5
-rw-r--r--include/asm-arm/arch-ixp4xx/gtwx5715.h4
-rw-r--r--include/asm-arm/arch-ixp4xx/ixdp425.h3
-rw-r--r--include/asm-arm/arch-ixp4xx/nas100d.h3
-rw-r--r--include/asm-arm/arch-ixp4xx/nslu2.h3
-rw-r--r--include/asm-arm/arch-ixp4xx/platform.h21
11 files changed, 53 insertions, 46 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 9f33cb21e7f3..6b393691d0e8 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -332,11 +332,27 @@ static struct platform_device *ixp46x_devices[] __initdata = {
&ixp46x_i2c_controller
};
+unsigned long ixp4xx_exp_bus_size;
+
void __init ixp4xx_sys_init(void)
{
+ ixp4xx_exp_bus_size = SZ_16M;
+
if (cpu_is_ixp46x()) {
+ int region;
+
platform_add_devices(ixp46x_devices,
ARRAY_SIZE(ixp46x_devices));
+
+ for (region = 0; region < 7; region++) {
+ if((*(IXP4XX_EXP_REG(0x4 * region)) & 0x200)) {
+ ixp4xx_exp_bus_size = SZ_32M;
+ break;
+ }
+ }
}
+
+ printk("IXP4xx: Using %uMiB expansion bus window size\n",
+ ixp4xx_exp_bus_size >> 20);
}
diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c
index 050c92768913..679594a73981 100644
--- a/arch/arm/mach-ixp4xx/coyote-setup.c
+++ b/arch/arm/mach-ixp4xx/coyote-setup.c
@@ -14,6 +14,7 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
+#include <linux/slab.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -30,8 +31,6 @@ static struct flash_platform_data coyote_flash_data = {
};
static struct resource coyote_flash_resource = {
- .start = COYOTE_FLASH_BASE,
- .end = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE - 1,
.flags = IORESOURCE_MEM,
};
@@ -81,6 +80,11 @@ static struct platform_device *coyote_devices[] __initdata = {
static void __init coyote_init(void)
{
+ ixp4xx_sys_init();
+
+ coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
+
*IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
@@ -91,8 +95,6 @@ static void __init coyote_init(void)
coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
}
-
- ixp4xx_sys_init();
platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
}
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
index 29a6d02fa851..038670489970 100644
--- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
@@ -27,6 +27,7 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
+#include <linux/slab.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -106,11 +107,9 @@ static struct flash_platform_data gtwx5715_flash_data = {
.width = 2,
};
-static struct resource gtwx5715_flash_resource = {
- .start = GTWX5715_FLASH_BASE,
- .end = GTWX5715_FLASH_BASE + GTWX5715_FLASH_SIZE - 1,
+static struct gtw5715_flash_resource = {
.flags = IORESOURCE_MEM,
-};
+}
static struct platform_device gtwx5715_flash = {
.name = "IXP4XX-Flash",
@@ -129,6 +128,14 @@ static struct platform_device *gtwx5715_devices[] __initdata = {
static void __init gtwx5715_init(void)
{
+ ixp4xx_sys_init();
+
+ if (!flash_resource)
+ printk(KERN_ERR "Could not allocate flash resource\n");
+
+ gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1;
+
platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices));
}
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 3a22d84e1047..c2e105c89c95 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -14,6 +14,7 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
+#include <linux/slab.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -30,8 +31,6 @@ static struct flash_platform_data ixdp425_flash_data = {
};
static struct resource ixdp425_flash_resource = {
- .start = IXDP425_FLASH_BASE,
- .end = IXDP425_FLASH_BASE + IXDP425_FLASH_SIZE - 1,
.flags = IORESOURCE_MEM,
};
@@ -108,17 +107,13 @@ static struct platform_device *ixdp425_devices[] __initdata = {
&ixdp425_uart
};
-
static void __init ixdp425_init(void)
{
ixp4xx_sys_init();
- /*
- * IXP465 has 32MB window
- */
- if (machine_is_ixdp465()) {
- ixdp425_flash_resource.end += IXDP425_FLASH_SIZE;
- }
+ ixdp425_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ ixdp425_flash_resource.end =
+ IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
}
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index bde9648e7afc..49998a8bd4e8 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -26,8 +26,6 @@ static struct flash_platform_data nas100d_flash_data = {
};
static struct resource nas100d_flash_resource = {
- .start = NAS100D_FLASH_BASE,
- .end = NAS100D_FLASH_BASE + NAS100D_FLASH_SIZE,
.flags = IORESOURCE_MEM,
};
@@ -115,6 +113,10 @@ static void __init nas100d_init(void)
{
ixp4xx_sys_init();
+ nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ nas100d_flash_resource.end =
+ IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+
pm_power_off = nas100d_power_off;
platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
diff --git a/include/asm-arm/arch-ixp4xx/coyote.h b/include/asm-arm/arch-ixp4xx/coyote.h
index dd0c2d2d8503..7ac9ba2c035c 100644
--- a/include/asm-arm/arch-ixp4xx/coyote.h
+++ b/include/asm-arm/arch-ixp4xx/coyote.h
@@ -16,9 +16,6 @@
#error "Do not include this directly, instead #include <asm/hardware.h>"
#endif
-#define COYOTE_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS
-#define COYOTE_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE * 2
-
/* PCI controller GPIO to IRQ pin mappings */
#define COYOTE_PCI_SLOT0_PIN 6
#define COYOTE_PCI_SLOT1_PIN 11
@@ -26,7 +23,7 @@
#define COYOTE_PCI_SLOT0_DEVID 14
#define COYOTE_PCI_SLOT1_DEVID 15
-#define COYOTE_IDE_BASE_PHYS IXP4XX_EXP_BUS_CS3_BASE_PHYS
+#define COYOTE_IDE_BASE_PHYS IXP4XX_EXP_BUS_BASE(3)
#define COYOTE_IDE_BASE_VIRT 0xFFFE1000
#define COYOTE_IDE_REGION_SIZE 0x1000
diff --git a/include/asm-arm/arch-ixp4xx/gtwx5715.h b/include/asm-arm/arch-ixp4xx/gtwx5715.h
index fc460af70627..c3069d67c00e 100644
--- a/include/asm-arm/arch-ixp4xx/gtwx5715.h
+++ b/include/asm-arm/arch-ixp4xx/gtwx5715.h
@@ -57,10 +57,6 @@
#define GTWX5715_GPIO13_IRQ IRQ_IXP4XX_SW_INT1
#define GTWX5715_GPIO14_IRQ IRQ_IXP4XX_SW_INT2
-
-#define GTWX5715_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS
-#define GTWX5715_FLASH_SIZE (0x00800000)
-
/* PCI controller GPIO to IRQ pin mappings
INTA INTB
diff --git a/include/asm-arm/arch-ixp4xx/ixdp425.h b/include/asm-arm/arch-ixp4xx/ixdp425.h
index 7d21bf941379..3d3820d7ba09 100644
--- a/include/asm-arm/arch-ixp4xx/ixdp425.h
+++ b/include/asm-arm/arch-ixp4xx/ixdp425.h
@@ -16,9 +16,6 @@
#error "Do not include this directly, instead #include <asm/hardware.h>"
#endif
-#define IXDP425_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS
-#define IXDP425_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE
-
#define IXDP425_SDA_PIN 7
#define IXDP425_SCL_PIN 6
diff --git a/include/asm-arm/arch-ixp4xx/nas100d.h b/include/asm-arm/arch-ixp4xx/nas100d.h
index ce7a86a98fc2..51ac0180427c 100644
--- a/include/asm-arm/arch-ixp4xx/nas100d.h
+++ b/include/asm-arm/arch-ixp4xx/nas100d.h
@@ -19,9 +19,6 @@
#error "Do not include this directly, instead #include <asm/hardware.h>"
#endif
-#define NAS100D_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS
-#define NAS100D_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE
-
#define NAS100D_SDA_PIN 6
#define NAS100D_SCL_PIN 5
diff --git a/include/asm-arm/arch-ixp4xx/nslu2.h b/include/asm-arm/arch-ixp4xx/nslu2.h
index b8b347a559c7..4281838873ef 100644
--- a/include/asm-arm/arch-ixp4xx/nslu2.h
+++ b/include/asm-arm/arch-ixp4xx/nslu2.h
@@ -18,9 +18,6 @@
#error "Do not include this directly, instead #include <asm/hardware.h>"
#endif
-#define NSLU2_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS
-#define NSLU2_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE
-
#define NSLU2_SDA_PIN 7
#define NSLU2_SCL_PIN 6
diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h
index 6b77ed26be79..daf9790645ca 100644
--- a/include/asm-arm/arch-ixp4xx/platform.h
+++ b/include/asm-arm/arch-ixp4xx/platform.h
@@ -26,16 +26,17 @@
*/
#define IXP4XX_EXP_BUS_BASE_PHYS (0x50000000)
-#define IXP4XX_EXP_BUS_CSX_REGION_SIZE (0x01000000)
-
-#define IXP4XX_EXP_BUS_CS0_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x00000000)
-#define IXP4XX_EXP_BUS_CS1_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x01000000)
-#define IXP4XX_EXP_BUS_CS2_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x02000000)
-#define IXP4XX_EXP_BUS_CS3_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x03000000)
-#define IXP4XX_EXP_BUS_CS4_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x04000000)
-#define IXP4XX_EXP_BUS_CS5_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x05000000)
-#define IXP4XX_EXP_BUS_CS6_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x06000000)
-#define IXP4XX_EXP_BUS_CS7_BASE_PHYS (IXP4XX_EXP_BUS_BASE_PHYS + 0x07000000)
+/*
+ * The expansion bus on the IXP4xx can be configured for either 16 or
+ * 32MB windows and the CS offset for each region changes based on the
+ * current configuration. This means that we cannot simply hardcode
+ * each offset. ixp4xx_sys_init() looks at the expansion bus configuration
+ * as setup by the bootloader to determine our window size.
+ */
+extern unsigned long ixp4xx_exp_bus_size;
+
+#define IXP4XX_EXP_BUS_BASE(region)\
+ (IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size))
#define IXP4XX_FLASH_WRITABLE (0x2)
#define IXP4XX_FLASH_DEFAULT (0xbcd23c40)
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